Meghan Markle's half sister has made an astonishing attack on the new Duchesses mum - just 48 hours after Doria Ragland attended this weekend's royal wedding.

Doria Ragland was widely-praised for her dignified composure at the wedding which which was watched by an estimated TV audience of around two billion people.

But Samantha Markle, who shares dad Thomas with Meghan, has hit out accusing Ms Ragland of selling photos of the new Duchess of Sussex and also being paid to talk to Oprah Winfrey, who was in attendance at the wedding.

She wrote on Twitter: "Even Doria cashed in talking to Oprah and some of the first photos out there only she could have had", reports the Mirror.

(Image: ITV)

Meghan's half-sister, aged 53, recently changed from being known by her last name Grant to Markle, according to the Sun.

Samantha regularly tweets about her half-sister, and her Twitter profile includes candid photographs of them growing up together.

This latest social media attack comes as it was claimed Samantha was paid a five-figure sum to watch the Royal Wedding with a TV crew.

(Image: Getty Images Europe)

(Image: Getty Images Europe)

Her partner Mark Phillips, 60, is reported to have told the MailOnline: “You can’t go in there. She is making big money with an exclusive TV interview.”

Meanwhile, Doria Ragland, 64, has remained largely silent after it was revealed her daughter had fallen in love with a Prince, with the American mum jetting into the UK to be by Meghan's side ahead of the wedding.

The mum was quickly welcomed by the Royal Family, with the bride even thanking her new in-laws for their kindness to her mum.